DUBOIS WWTP - Du Bois, Nebraska Wastewater Treatment Plant

DUBOIS WWTP is a municipal wastewater treatment facility located in Du Bois, Nebraska, a small community in Pawnee County. The plant serves a population of 181 and is part of the region's infrastructure for managing domestic wastewater. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 37.85 million gallons per year and currently discharges a similar volume, indicating full utilization. Under the US Clean Water Act, facilities of this scale are typically permitted through the National Pollutant Discharge Elimination System (NPDES), administered by the Nebraska Department of Environment and Energy. Secondary treatment is the minimum standard for municipal wastewater plants in the United States. The treated effluent is discharged into local waterways that drain into the Missouri River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. The plant plays a role in protecting downstream water quality in this agriculturally intensive region, where nutrient management is a key environmental concern.

The plant discharges into small streams in the Big Nemaha River watershed, which flows into the Missouri River and then the Mississippi River. This region is part of the Mississippi River basin, which drains to the Gulf of Mexico. The area is predominantly agricultural, and nutrient runoff from both wastewater and farming contributes to the Gulf of Mexico hypoxic zone. The plant's secondary treatment helps reduce organic pollutants but may not fully address nutrient removal.